Q 2608012808.     The density of the vapours of a substance at 1 atm pressure and 500 K is 0.36 Kg `m^-3` The vapour effuses through a small hole at a rate of 1.33 times faster than oxygen under the same conditions.
(a) Determine (i) molecular weight (ii) molar volume (iii) compression factor(z) of the vapours and (iv) which forces among gas molecules are dominating, the attractive or repulsive.
(b) If the vapours behave ideally at 1000 K determine the avera~Je translational kinetic energy of a molecule

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